[article] 
inActa Orthopaedica Belgica > Vol.81/4 (Décembre 2015) . - p.654-661

Titre :	Evaluation of implant alignment in navigated unicompartmental knee arthroplasty : a comparison of 2D and 3D imaging
Type de document :	texte imprimé
Auteurs :	Kazunari Ishida ; Akihiko Toda ; Nao Shibanuma
Année de publication :	2015
Article en page(s) :	p.654-661
Langues :	Anglais (eng)
Résumé :	This study aimed to compare two-dimensional (2D) and three-dimensional (3D) methods for evaluating implant alignment in navigated UKA. Nineteen UKAs in 18 subjects (7 men) were performed using an image- free navigation system. Coronal and sagittal implant alignments were assessed using radiographs (2D evaluation) and 3D image-matching software. The accuracy of 2D evaluation was compared with that of 3D evaluation. A deviation > 3° from the 3D evaluation was defined as an outlier. In the 2D evaluation, outliers for the femoral component were observed in both the coronal plane (6/19 subjects) and the sagittal plane (3/19 subjects). In UKA, assessment of the implant position might be misjudged because of the design of the implant, especially for the femoral component ; 3D methods are ideal for assessment of implant alignment.
Permalink :	./index.php?lvl=notice_display&id=42347

[article] Evaluation of implant alignment in navigated unicompartmental knee arthroplasty : a comparison of 2D and 3D imaging [texte imprimé] / Kazunari Ishida ; Akihiko Toda ; Nao Shibanuma . - 2015 . - p.654-661.
Langues : Anglais (eng)
in Acta Orthopaedica Belgica > Vol.81/4 (Décembre 2015) . - p.654-661

Résumé :

This study aimed to compare two-dimensional (2D) and three-dimensional (3D) methods for evaluating implant alignment in navigated UKA. Nineteen UKAs in 18 subjects (7 men) were performed using an image- free navigation system. Coronal and sagittal implant alignments were assessed using radiographs (2D evaluation) and 3D image-matching software. The accuracy of 2D evaluation was compared with that of 3D evaluation. A deviation > 3° from the 3D evaluation was defined as an outlier. In the 2D evaluation, outliers for the femoral component were observed in both the coronal plane (6/19 subjects) and the sagittal plane (3/19 subjects). In UKA, assessment of the implant position might be misjudged because of the design of the implant, especially for the femoral component ; 3D methods are ideal for assessment of implant alignment.

Permalink :

./index.php?lvl=notice_display&id=42347